C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) C08G 18/08 (2006.01) C08G 18/16 (2006.01) C08J 9/00 (2006.01)
Patent
CA 2106451
A process for producing an isocyanate-based elastomer comprising the steps of: providing a first mixture comprising a catalyst and a filler material, the surface of the filler material being at least partially surrounded by the catalyst to form an available reactive site for polymerization; providing a second mixture comprising an isocyanate and an active hydrogen-containing compound which are substantially unreacted; and contacting the first mixture and the second mixture to provide a reaction mixture; wherein said contacting causes substantially immediate reaction of the reaction mixture at the available reaction site to produce the isocyanate-based elastomer. The filler material may be a post-consumer and/or post-user article resulting in effective recycling of the article. The filler material may be selected to confer to the product isocyanate-based elastomer one or more of the following properties: porosity, breathability, tearability, flotation, conductivity, thermoformability, sound attenuation and the like.
Gowling Lafleur Henderson Llp
Woodbridge Foam Corporation
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